username on Nostr: Hello world

{ "id": "0dd68b1e8e3c0cfa6e38d38dc4f9f76fab4325a565d1b20a5d6294fd01c0807d", "pubkey": "79dff8f82963424e0bb02708a22e44b4980893e3a4be0fa3cb60a43b946764e3", "created_at": 1722600310, "kind": 1, "tags": [], "content": "Hello world", "sig": "aeb793f50f64011057f904376ed3de1ac82114541d23c7c669484e9b042dc8db5235b242c94732026c8edf49bd0e9b0380dd0b08505577b2485363a3f892c4b6" }